Rammer, especially for road making



Sept. 30, 1941- J. BORGMANN RAMMER, ESPECIALLY FOR ROAD MAKING FiledJuly 7, 1959 3 6 W 4. .h a p MW Jr 6 3 e P I I 4 4 a E E w 2 5 M 0 4 1MWIIIIIHHVIIlII l fiunuu\ 4 V HIIIPHHHHHHIIIIIGIIIIIIIIM m ul l fidn w I1-- ii. I.

A. A/Ibrney Patented Sept. 30, 1941 RAIVIMER, ESPECIALLY FOR ROAD MAKINGJohann Borgmann, Duisburg-Hamborn, Germany Application July '7, 1939,Serial No. 283,232 In Germany July 5, 1938 3 Claims.

When making bituminous road coverings, the portions which cannot bereached by the road roller and also the raised portions remainingbetween the tracks of the roller are rammed by means of an instrumentcalled a hand rammer. However, the material of the road covering has atendency to stick to the ramming tool which consequently has to berepeatedly cleaned with the result that the ramming work is continuallyinterrupted.

According to the invention the sticking of the road material issubstantially prevented by constructing the tamper head in the shape ofa three-sided prism with longitudinal edges extending perpendicularly tothe post of the rammer, which tool can be turned about its longitudinalaxle on the rammer post formed by two channel bars and is fixable hereonfrom the handle of the rammer, whereas a spraying device controllablefrom the handle of the rammer is arranged above the tamper head and canbe set in operation when required. This spraying device consists of acontainer for the liquid to be sprayed said container arranged betweenthe channel bars of the rammer post and of a spraying tube connected tothe container by a valve and extending parallel to the longitudinaledges of the tamper head, the valve adapted to be controlled by a rodextending to the handle of the rammer and supported thereon by a spring.The device for holding the tamper head in its position consists of tworods guided on the channel bars and each having at its lower end aninwardly bent fork engaging over the tool, the upper ends of these tworods having, below the handle of the rammer, outwardly bent portionsforming handles by which they can be pulled upwards against the actionof a spring.

The rammer according to the invention allows uninterrupted work becausethe sticking of the road making material cannot exert detrimental effectas the tamper head can be turned and the sticky mass can be removed in asimple manner during work by means of the spraying device.

An embodiment of the invention is illustrated by way of example in theaccompanying drawing, in which Fig. 1 shows the rammer in frontelevation,

Fig. 2 is a side elevation of Fig. 1 in which some of the parts at thelower end of the post are cut away to show the forked construction ofthe locking rods.

Fig. 3 is a cross-sectional view taken on line 3-3 of Fig. 2.

According to the invention the tamper head I is in the form of athree-sided prism the longitudinal edge of which extends perpendicularlyto the rammer post. This prismatic tool I can be turned about itslongitudinal axle 3 fixed in two channel bars '2. This tool I can besecured in position from the handle 6 of the rammer. A spraying deviceis arranged between the U-section bars 2 above the tamper head I andconsists of a container 4 for the liquid to be sprayed and of a sprayingtube 5 connected to the container t by a valve 8 and extending parallelto the longitudinal edges of the tamper head I. The valve 8 fitted inthe bottom I of the container i is controllable by means of a rod 9extending to the handle 8 of the rammer and supported thereon by aspring ll, so that by exerting pressure on the knob IE] on the upper endof rod 9 the liquid fiows out of the container 4 into the spraying tube5 and is sprayed on to the tamper head I through holes H2 in this tube.The container 4 is filled through a closable aperture 53 at the top ofthe container, whereas the valve 8 can be inspected and renewed througha closable aperture [4 in the spraying tube 5. As shown by dotted linesin Fig. l, the upper ends of the channel bars 2 are bent outwardly forattachment to the rammer handles 6 carried by the upper end of thecontainer 4. The device for holding the tamper head I consists of tworods l5 extending along the channel bars 2, these rods each having aninwardly bent fork l6 engaging the ramming tool through an aperture I!in the correspond-' ing channel bars 2, whereas the upper ends have eachan outwardly bent portion forming a handle i8 by means of which the rodscan be raised against the action of springs l9, when the tamper head hasto be turned about its axle.

I claim:

1. A rammer especially for road making, comprising in combination a postformed of two channel bars, an axle mounted in the lower end of saidbars, a tamper head mounted on said axle so that it can be turned aboutit and having the form of a three-sided prism with its longitudinal edgeextending perpendicularly to said post, a handle on the upper end ofsaid post, means operable from said handle for holding said tamper head,a spraying device mounted on said post above said tamper head, and meansfor operating said spraying device from said handle.

2. In a rammer as specified in claim 1, the spraying device comprisingin combination a container for the liquid to be sprayed mounted betweenthe channel bars, a spraying tube leading from said container andextending parallel to the longitudinal edges of the tamper head, and avalve in said tube, and. the means for operating the spring devicecomprising a rod between said valve and the handle for controlling said'valve, and a spring supporting said rod on said handle. 7

3. In a rammer as specified in claim 1, the means for holding the tamperhead comprising in combination two rods guided one on each of saidchannel bars, inwardly bent forks one on the lower end of each rod andengaging the opposite sides of the tamper head, two handles formed byoutwardly bentportions one on the upper end of each of said rods belowthe handle of the rammer, and adapted to lift said forks out ofengagement with said tool, and two springs, one on each of said rodsadapted to press said J OHANN BORGMANN.

